Shareholders' Equity - Common Share Rollforward (Details) - USD ($) $ in Millions								12 Months Ended
	Nov. 05, 2024	Sep. 12, 2024	Sep. 20, 2022	Jun. 21, 2022	May 11, 2022	Mar. 17, 2022	Sep. 12, 2018	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Sep. 15, 2023	May 07, 2013
Increase (Decrease) in Stockholders' Equity
Common stock, shares issued, beginning balance (in shares)								103,584,699
Common stock, shares held in treasury, beginning balance (in shares)								730,130
Common stock, shares outstanding, beginning balance (in shares)								102,854,569	97,200,000	107,800,000
Common stock, shares issued (in shares)										100,000
Common stock, shares acquired under share repurchase (in shares)	(222,007)	(1,061,853)	(819,566)	(3,382,950)	(890,112)	(3,305,786)		(8,600,000)	(5,400,000)	(11,700,000)
Common stock, shares issued for share-based compensation programs (in shares)								1,100,000	1,400,000	1,000,000.0
Treasury Stock retirement (in shares)									0	0
Common stock, shares issued, ending balance (in shares)								105,592,281	103,584,699
Common stock, shares held in treasury, ending balance (in shares)								10,095,016	730,130
Common stock, shares outstanding, ending balance (in shares)								95,497,265	102,854,569	97,200,000
Less: Valuation allowance								$ 96	$ 95
Number of warrants issued and outstanding								0				26,050,846
Preferred Stock, Dividend Rate, Applicable Period											5 years
Series A Preferred Stock
Increase (Decrease) in Stockholders' Equity
Preferred stock, shares issued (in shares)							325,000	325,000	325,000
Preferred stock, shares outstanding (in shares)								325,000	325,000
Preferred stock, dividend rate, percentage							6.125%	7.758%	612.50%
Common Stock
Increase (Decrease) in Stockholders' Equity
Common stock, shares issued, beginning balance (in shares)								103,600,000	97,800,000	109,000,000.0
Common stock, shares issued (in shares)								100,000	9,700,000	100,000
Common stock, shares acquired under share repurchase (in shares)								0	0	0
Common stock, shares issued for share-based compensation programs (in shares)								1,900,000	2,100,000	1,700,000
Treasury Stock retirement (in shares)									(6,000,000.0)	(13,000,000.0)
Common stock, shares issued, ending balance (in shares)								105,600,000	103,600,000	97,800,000
Treasury stock
Increase (Decrease) in Stockholders' Equity
Common stock, shares held in treasury, beginning balance (in shares)								(700,000)	(600,000)	1,200,000
Common stock, shares issued (in shares)								0	0	0
Common stock, shares acquired under share repurchase (in shares)								(8,600,000)	(5,400,000)	(11,700,000)
Common stock, shares issued for share-based compensation programs (in shares)								800,000	700,000	700,000
Treasury Stock retirement (in shares)									(6,000,000.0)	(13,000,000.0)
Common stock, shares held in treasury, ending balance (in shares)								10,100,000	(700,000)	(600,000)